Improved bolt-feeder



l. C RNWELL. Flour Bolt.4

2 Sheets-Sheet 2.

No. 88,137. y Patented March 23, 1869.

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JAGOIS OORNWELL, OF KALAMAZOOLMIOHIGAN, ASSIGNOR TO HIMSELF, DAVID B.MERRILL, AND WILLIAM H. MCOOURTIE, OF THE SAME PLACE.

IMPROVED BOLT-FEEDER.

The Schedule referred to in these Letters Patent and making part of thesame.

To all whom it may conce/rn.-

Be it known that I, JACOB GonNwELL, of Kalamazoo, in the county ofKalamazoo, in the State of Michigan, have invented a new and usefulImprovement in Silent Bolt-Feeders; and I dohereby declare and make'known that the following is a full, clear, and exact description of thesame, reference being had to the accompanying drawings, and the lettersand figures marked thereon, which form part of this specification.

My said invention relates to a novel combination of a feeding-devicewith a Hour-cooler and a bolt, so arranged that the rake of the coolerconveys the flour from the cooler into the silent feeder, through whichit passes, and through a suitable couveyer into the bolt, as hereinaftermore fully set forth.

. My said inventidn further consists in a novel device for regulatingthe feeder aforesaid, whereby the passage of the flour throughI the sameinto the bolt can be controlled and varied at pleasure.

To enable those skilled in the art to understand how to construct anduse my said invention, I will proceed to describe thesaine ,withparticularity, making reference, in so doing, to the aforesaid.drawings, in which- Figure 1 represents a vertical central section of myinvention, taken at the line :v in iig. 3.

Figure 2 is a side elevation of the same, taken at,

right angles with the line :c aforesaid, the case being removed, asshown at the line y in lig. 1;

, Figure 3 is a plan or top view of my said invention; Figure 4 is ahorizontal plan section, taken at the line z in lig. l;

Figure 5 is a plan section at the line w in said iig. 1, seen frombelow; and

, Figure 6 is a plan view of the feed-regulating device,

v being shown in section through fig. 2, at line o.

Similar letters of reference, in the several figures, denote the sameparts of my said invention.

A represents the flour-cooler, into which the flour is discharged as itcomes from the grinding-stones, said cooler being of a suitable size,according to the capacity of the mill, at the centre of which is arevolving shaft, B, upon which is 'a stirrer, or rake, which revolvesupon the oor of the cooler, stirring up the flour, and gradually andcontinuously raking the same into an opening in' the iioor of thecooler, below which is arranged a vertical cylinder, marked F. Y

In order that, in revolving the shaft of the rake B, the power may beapplied near the ends of the' said rake, a bar, I), is attached to theshaft, whose ends vare attached to the rake by cords E E, as shown iniig. 3.

In the centre of said cylinder, or hoop F, there is a vertical revolvingshaft, M, whose foot rests in a suitable step on a cross-bar, P, saidshaft M being revolved byt means of the shaft Wand thebevelled-gearwheel, shown in iig. 2.

-Upon said shaft M, a short distance below the end of the hoopF, acircular disk, N, is secured, extending out beneath the edge of the hoopF and the adjustable sleeve I, upon said l op, as shown inlfig. 1.-

T he aforesaid sleeve I is [itovided with a lever, J, by means of whichthesleeve I may be moved up or down, to regulate the space between itslower end and said disk N, to regulate the feed of the iiour into ythebolt, as hereinafter described.

H represents a cylinder enclosing the hoop F, being securely attached tothe lower side of the cooler, as shown, and extending down some distancelower than said hoop F and sleeve I, into thelower end of which isfitted a tight bottom, L, through the centre of which passes the shaftM.

The strip O, secured to the under side of the revolving disk N, is soarranged as to sweep the bottom, L, of the hoop, or cylinder H.

The bar P, which supports the foot .of the shaft M, is hinged atone endto the frame Q, and its opposite end is secured ,to a lever, R, having avertical movement7 so that the feed of the apparatus can also beregulated by moving the shaft M up, or allowing it to drop down, thusbringing the revolving platform, or y disk N, nearer to or further fromthe lower end of the hoop F. When this device is employed, the sleeve Imay be dispensed with. l

Near the foot of the shaft M, an annular groove, m, is made, into whicha plate, n, secured upon the bar P, enters, so that when the bar P hasbeen raised,.and afterwards lowered, the shaft will be drawn down, atthe downward movement of the bar, thus keeping the shaftupon the bar,and insuring the desired regulation of the feed which the lowering ofthe disk N would produce.

l In the bottom of the cylinder H, a'hole,` l, is made,

as seen in-g. 1, which is.provided beneath with a spout, or conveyor, S,which leads into the end of a bolt, marked T.

The power for operating the mill-rake, or stirrer C, I

and also for revolving `the shaft M and itsplatform N, may be applied inany Vsuitable manner.

Then the'flour is being fed or discharged into the cooler A, and therake-shaft M and the bolt T are re.

volved, the Hour is gradually and in regular quantities raked into thecylinder F, falling upon the revolving table, or disk M. Y

` The motion of said disk causes the our to be distributed uniformlyaround at the edge, to go out between tlie disk and the sleeve I, orbetween said disk and the hoop F, according as one or the other of themodes herein shown for regulating the feed is employed.

The i'lour then falls upon the bottom, L, of the outer hoop, and therevolving arm O, upon the under side ofthe disk, sweeps the our into thespout S, through the opening l aforesaid, into the bottom, L, whence itpasses into the bolt, as indicated by the arrows in tic. 1.

Having described the nature, construction, and operation of myinvention, I will now specify what I desire to secure by Letters Patent,and elainl as my invention.

1. I claim the combination of the rake O, hoop F, cylinder H, with itsbottom, L, revolving disk'N, spout S, and bolt T, all arranged as andfor the purposes set Y forth.

2^ I claim the combination of the hoop F, shaftM revolving platform N,and the movable crossmr P, supporting said shaft, arranged to operate inthe manner shouf/n and described.

3. I claim, in combination Withthe shaft M and revolving disk N, theadjustable supporting-bar P and lever 1l, arranged to operate in themanner and for the purposes specicd. v

J AOOB CORN WELL. Witnesses:

ISAAC A. BROWN, D. H'. HAINEs.

